Devices for active overvoltage protection including varistors and thyristors
US11881704B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 2022 |
| Grant date | Jan 23, 2024 |
| Priority date | — |
| Expiry date | May 27, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/043
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit protection device is provided. The circuit protection device includes an active energy absorber that is coupled between two power lines in an electrical power distribution system and is configured to selectively conduct fault current responsive to overvoltage conditions. The active energy absorber includes an overvoltage protection module that includes two thyristors that are connected in anti-parallel with one another and a varistor that is connected with the overvoltage protection module as a series circuit. The series circuit including the varistor and the overvoltage protection module is connected between the power lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.